Question Booklet and Answer Key of Assistant Manager (Electrical) 2015 Exam by DMRC

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Empire tape is

(a) varnished cambric
(b) vulcanized rubber
(c) impregnated paper
(d) none of the above



















Ans: a

The thickness of the layer of insulation on the conductor, in cables, depends upon

(a) reactive power
(b) power factor
(c) voltage
(d) current carrying capacity




Ans: (c) voltage

Which of the following protects a cable against mechanical injury ?

(a) Bedding
(b) Sheath
(c) Armoring
(d) None of the above

























Ans: c

Which of the following insulation is used in cables ?

(a) Varnished cambric
(b) Rubber
(c) Paper
(d) Any of the above























Ans: d

The insulating material for a cable should have

(a) low cost
(b) high dielectric strength
(c) high mechanical strength
(d) all of the above

Ans: d